Not sure which Kodi version you are running. Be aware that there have been some skin updates for Kodi Release Candidates. If I enter my Addons-menu it looks like this:Imgur: The most awesome images on the Internet
And there you have your addon-browser. Not that hard to find.
Hi DaVu, thanks for responding.
I updated LibreELEC to (Krypton) v7.95.1 BETA after the ESPN3 addon stopped working; it would crash whenever I tried to "authenticate". I've attached the LibreELEC (Krypton) v7.95.1 BETA screen...